388338660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19793}}^1$

素因数の和:19917

約数の個数: 72

約数和(自身を含む): 1188827640

約数和(自身を除く): 800488980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1308, 1635, 1962, 2180, 3270, 3924, 4905, 6540, 9810, 19620, 19793, 39586, 59379, 79172, 98965, 118758, 178137, 197930, 237516, 296895, 356274, 395860, 593790, 712548, 890685, 1187580, 1781370, 2157437, 3562740, 4314874, 6472311, 8629748, 10787185, 12944622, 19416933, 21574370, 25889244, 32361555, 38833866, 43148740, 64723110, 77667732, 97084665, 129446220, 194169330, 388338660]

約数ペア:

[(1, 388338660), (2, 194169330), (3, 129446220), (4, 97084665), (5, 77667732), (6, 64723110), (9, 43148740), (10, 38833866), (12, 32361555), (15, 25889244), (18, 21574370), (20, 19416933), (30, 12944622), (36, 10787185), (45, 8629748), (60, 6472311), (90, 4314874), (109, 3562740), (180, 2157437), (218, 1781370), (327, 1187580), (436, 890685), (545, 712548), (654, 593790), (981, 395860), (1090, 356274), (1308, 296895), (1635, 237516), (1962, 197930), (2180, 178137), (3270, 118758), (3924, 98965), (4905, 79172), (6540, 59379), (9810, 39586), (19620, 19793)]